Electric fuse.



NO. 834,989. PATENTED NOV. 6, 1906.

J. J. MILEY.

ELECTRIC 'PU$E.

APPLICATION FILED MAR. 5, 1906.

ll/zZzzesseisr fizuerziarx UNITED STATES PATENT OFFICE. JOHN J. MILEY,OF BOSTON, MASSACHUSETTS.

EILECTRIC FUSE.

Specification of Letters Patent.

Iatented Nov. 6, 1906.

Application filed March 5, 1906. Serial No. 304,187.

- To a, 1072 0171, it may concern.-

Be it known that I, J OHN J. MILEY, of Boston, county of Suffolk, Stateof Massachusetts, have invented an Improvement in Electric Fuses, ofwhich the following description, in connection with the accompanyingdrawings, is /specification, like characters on the drawingsrepresenting like parts.

Electric fuses as ordinarily constructed have slotted terminal plates atthe ends adapted to be connected with a pair of terminals which areprovided on a fuse-block.

At the present time the fuses made by dif ferent manufacturers vary inlength, and the different manufacturers make fuse-blocks havingterminals which are relatively disposed to receive fuses of their ownmanufacture, the terminals being too widely separated or too closelydisposed to receive fuses made by other manufacturers.

This invention has for its object to provide an electric fuse withterminal plates which are so constructed and arranged that the fuse maybe connected with the terminals of any of the well-known fuse-blocksIlOIW in 00111111011 use.

Figure 1 shows in perspective view an electric fuse embodying thisinvention. Figs. 2, 3, 4, and 5 are plan views of the same connected,respectively, to the terminals of fuseblocks made by differentmanufacturers;

(1.- represents the cylindrical or other shaped body of an electricfuse, and b the terminal plate which is secured to one end thereof,which is formed with a transverse slot 6, whereby it is adapted to beconnected with one of the terminals of any well-known form or type offuse-block now in common use, and 0 represents the terminal plate, whichis secured to the opposite end of the body a. The terminal 0 is formedor provided with a longitudinal slot 0 and is adapted to be connectedwith the other terminal of any of the aforesaid fuse-blocks.

The terminal plate 0 is made very long, and the slot 0 therein is alsomade very long, and the length of the slotted portion of said terminalplate corresponds to the difference be tween the closely-disposed andthe widelyseparated terminals of the different fuseblocks now in commonuse.

In attaching the fuse to the fuse-block the terminal plate I) will beconnected with one of the terminals of the fuse-block and the terminalplate 0 will be or nnected with the I other terminal thereof regardlessof the dis tance apart said terminals may be located. In other words,the terminal plate 0 is made long enough to provide for connecting thefuse with the most widely separated terminals of the differentfuse-blocks now in common use, and the slot 0 therein is made longenough to provide for connecting the fuse with the most closelydisposed. terminals of the different fuse-blocks now iii-common use.

For the sake of illustration it may be stated that at the present timethere are four well-known forms or types of fuse-blocks in common use,known in the trade as the Shawmut, Old Shawmut, D. & W., and Noark, andthe elongated terminal plate 0, which is provided with the elongatedslot 0, is scored transversely or otherwise marked to indicate thecorrect length the terminal plate should be in order that the fuse maybe connected with these particular forms or types of fuse-blocks, and,if desired, the terminal plate a may be cut off where scored orotherwise marked previous to being attached to the fuse-block.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is I 1. An electric fuse adapted to beconnected with the more or less widely separated terminals of differentfuse-blocks, having terminal plates, one of which has alongitudinally-slotted portion corresponding in length to the differencebetween the closelydisposed and the widely-separated terminals of thedifferent fuse-blocks, substantially as described.

2, An electric fuse adapted to be connected with the more or less widelyseparated terminals of different fuse-blocks, having terminal plates,one of which has a longitudinally-slotted portion corresponding inlength to the difference between the closelydisposed and thewidely-separated terminals of the different fuse-blocks, and marked toindicate the correct length to be used for the different fuse-blocks,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

. JOHN J. MILEY.

Witnesses:

B. J. NoYEs, II; B. DAVIS.

